== sanity test 398c: run fio to test AIO ================= 21:25:46 (1788917146) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.350655 s, 120 MB/s osc.lustre-OST0000-osc-ffff8d0ac8bcf000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=153870: Tue Sep 8 21:27:40 2026 write: IOPS=23, BW=95.1KiB/s (97.3kB/s)(10.0MiB/107715msec); 0 zone resets slat (usec): min=22, max=6484, avg=227.61, stdev=493.87 clat (msec): min=191, max=1377, avg=672.35, stdev=163.88 lat (msec): min=191, max=1377, avg=672.58, stdev=163.90 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 414], 10.00th=[ 489], 20.00th=[ 550], | 30.00th=[ 592], 40.00th=[ 634], 50.00th=[ 667], 60.00th=[ 709], | 70.00th=[ 743], 80.00th=[ 793], 90.00th=[ 877], 95.00th=[ 944], | 99.00th=[ 1083], 99.50th=[ 1217], 99.90th=[ 1368], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 23, max= 220, per=24.96%, avg=94.86, stdev=28.67, samples=213 iops : min= 5, max= 55, avg=23.32, stdev= 7.19, samples=213 lat (msec) : 250=1.25%, 500=10.59%, 750=59.57%, 1000=26.45%, 2000=2.15% cpu : usr=0.05%, sys=0.33%, ctx=2497, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=153871: Tue Sep 8 21:27:40 2026 write: IOPS=23, BW=95.3KiB/s (97.6kB/s)(10.0MiB/107479msec); 0 zone resets slat (usec): min=22, max=7636, avg=194.84, stdev=420.47 clat (msec): min=137, max=1494, avg=671.20, stdev=168.01 lat (msec): min=137, max=1494, avg=671.40, stdev=168.02 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 414], 10.00th=[ 489], 20.00th=[ 542], | 30.00th=[ 592], 40.00th=[ 634], 50.00th=[ 676], 60.00th=[ 709], | 70.00th=[ 743], 80.00th=[ 793], 90.00th=[ 869], 95.00th=[ 936], | 99.00th=[ 1070], 99.50th=[ 1250], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8, max= 255, per=24.96%, avg=94.85, stdev=35.63, samples=213 iops : min= 2, max= 63, avg=23.32, stdev= 8.90, samples=213 lat (msec) : 250=1.25%, 500=11.21%, 750=59.06%, 1000=25.74%, 2000=2.73% cpu : usr=0.05%, sys=0.31%, ctx=2269, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=153872: Tue Sep 8 21:27:40 2026 write: IOPS=23, BW=95.3KiB/s (97.6kB/s)(10.0MiB/107481msec); 0 zone resets slat (usec): min=29, max=7115, avg=208.63, stdev=426.93 clat (msec): min=51, max=1367, avg=671.03, stdev=163.26 lat (msec): min=52, max=1368, avg=671.24, stdev=163.25 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 426], 10.00th=[ 485], 20.00th=[ 550], | 30.00th=[ 592], 40.00th=[ 634], 50.00th=[ 667], 60.00th=[ 701], | 70.00th=[ 743], 80.00th=[ 793], 90.00th=[ 877], 95.00th=[ 936], | 99.00th=[ 1070], 99.50th=[ 1250], 99.90th=[ 1301], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 23, max= 247, per=24.95%, avg=94.83, stdev=31.12, samples=213 iops : min= 5, max= 61, avg=23.31, stdev= 7.79, samples=213 lat (msec) : 100=0.08%, 250=1.56%, 500=10.43%, 750=59.38%, 1000=26.33% lat (msec) : 2000=2.23% cpu : usr=0.06%, sys=0.33%, ctx=2421, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=153873: Tue Sep 8 21:27:40 2026 write: IOPS=23, BW=95.0KiB/s (97.3kB/s)(10.0MiB/107765msec); 0 zone resets slat (usec): min=23, max=6214, avg=197.25, stdev=412.42 clat (msec): min=192, max=1260, avg=672.59, stdev=159.01 lat (msec): min=192, max=1260, avg=672.79, stdev=159.01 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 430], 10.00th=[ 489], 20.00th=[ 550], | 30.00th=[ 592], 40.00th=[ 634], 50.00th=[ 676], 60.00th=[ 709], | 70.00th=[ 751], 80.00th=[ 802], 90.00th=[ 869], 95.00th=[ 927], | 99.00th=[ 1053], 99.50th=[ 1167], 99.90th=[ 1250], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 32, max= 219, per=24.84%, avg=94.41, stdev=29.87, samples=214 iops : min= 8, max= 54, avg=23.21, stdev= 7.48, samples=214 lat (msec) : 250=1.33%, 500=10.59%, 750=58.95%, 1000=27.03%, 2000=2.11% cpu : usr=0.05%, sys=0.31%, ctx=2128, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=380KiB/s (389kB/s), 95.0KiB/s-95.3KiB/s (97.3kB/s-97.6kB/s), io=40.0MiB (41.9MB), run=107479-107765msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=153898: Tue Sep 8 21:28:58 2026 read: IOPS=17, BW=70.5KiB/s (72.2kB/s)(5048KiB/71617msec) slat (usec): min=2617, max=37751, avg=9065.83, stdev=4119.12 clat (msec): min=24, max=630, avg=279.79, stdev=56.27 lat (msec): min=28, max=645, avg=288.87, stdev=56.97 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 197], 10.00th=[ 213], 20.00th=[ 239], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 279], 60.00th=[ 296], | 70.00th=[ 309], 80.00th=[ 321], 90.00th=[ 347], 95.00th=[ 363], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 23, max= 152, per=25.14%, avg=70.13, stdev=25.82, samples=142 iops : min= 5, max= 38, avg=17.08, stdev= 6.52, samples=142 write: IOPS=18, BW=72.5KiB/s (74.2kB/s)(5192KiB/71617msec); 0 zone resets slat (usec): min=33, max=7403, avg=286.09, stdev=565.73 clat (msec): min=206, max=1145, avg=599.58, stdev=151.43 lat (msec): min=207, max=1145, avg=599.87, stdev=151.43 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 372], 10.00th=[ 405], 20.00th=[ 468], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 592], 60.00th=[ 642], | 70.00th=[ 684], 80.00th=[ 735], 90.00th=[ 793], 95.00th=[ 852], | 99.00th=[ 978], 99.50th=[ 1036], 99.90th=[ 1070], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 23, max= 144, per=24.77%, avg=71.82, stdev=23.09, samples=142 iops : min= 5, max= 36, avg=17.49, stdev= 5.82, samples=142 lat (msec) : 50=0.35%, 100=0.04%, 250=12.93%, 500=49.73%, 750=28.55% lat (msec) : 1000=8.09%, 2000=0.31% cpu : usr=0.12%, sys=0.90%, ctx=5178, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153899: Tue Sep 8 21:28:58 2026 read: IOPS=17, BW=69.3KiB/s (70.0kB/s)(4976KiB/71788msec) slat (usec): min=48, max=34800, avg=9053.71, stdev=4115.89 clat (msec): min=10, max=460, avg=279.91, stdev=55.16 lat (msec): min=10, max=470, avg=288.98, stdev=55.75 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 197], 10.00th=[ 215], 20.00th=[ 236], | 30.00th=[ 253], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 296], | 70.00th=[ 309], 80.00th=[ 326], 90.00th=[ 347], 95.00th=[ 363], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 451], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 15, max= 144, per=24.57%, avg=68.54, stdev=27.82, samples=142 iops : min= 3, max= 36, avg=16.68, stdev= 7.03, samples=142 write: IOPS=18, BW=73.3KiB/s (75.1kB/s)(5264KiB/71788msec); 0 zone resets slat (usec): min=30, max=6943, avg=287.54, stdev=528.44 clat (msec): min=80, max=1042, avg=598.78, stdev=154.60 lat (msec): min=80, max=1042, avg=599.07, stdev=154.61 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 359], 10.00th=[ 405], 20.00th=[ 472], | 30.00th=[ 514], 40.00th=[ 550], 50.00th=[ 592], 60.00th=[ 642], | 70.00th=[ 684], 80.00th=[ 726], 90.00th=[ 785], 95.00th=[ 869], | 99.00th=[ 978], 99.50th=[ 986], 99.90th=[ 1028], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 24, max= 160, per=24.97%, avg=72.42, stdev=22.02, samples=142 iops : min= 6, max= 40, avg=17.65, stdev= 5.55, samples=142 lat (msec) : 20=0.08%, 50=0.27%, 100=0.16%, 250=13.52%, 500=48.63% lat (msec) : 750=29.10%, 1000=8.16%, 2000=0.08% cpu : usr=0.14%, sys=0.90%, ctx=4798, majf=0, minf=16 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153900: Tue Sep 8 21:28:58 2026 read: IOPS=17, BW=69.4KiB/s (71.1kB/s)(4984KiB/71803msec) slat (usec): min=2358, max=34446, avg=9248.61, stdev=4041.19 clat (msec): min=18, max=446, avg=280.62, stdev=53.70 lat (msec): min=23, max=454, avg=289.88, stdev=54.09 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 197], 10.00th=[ 222], 20.00th=[ 243], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 326], 90.00th=[ 347], 95.00th=[ 368], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 414], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 15, max= 144, per=24.60%, avg=68.65, stdev=29.03, samples=142 iops : min= 3, max= 36, avg=16.70, stdev= 7.30, samples=142 write: IOPS=18, BW=73.2KiB/s (74.0kB/s)(5256KiB/71803msec); 0 zone resets slat (usec): min=37, max=7996, avg=302.94, stdev=574.76 clat (msec): min=42, max=1065, avg=597.19, stdev=159.23 lat (msec): min=42, max=1065, avg=597.50, stdev=159.25 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 347], 10.00th=[ 405], 20.00th=[ 468], | 30.00th=[ 510], 40.00th=[ 550], 50.00th=[ 592], 60.00th=[ 642], | 70.00th=[ 684], 80.00th=[ 735], 90.00th=[ 793], 95.00th=[ 869], | 99.00th=[ 978], 99.50th=[ 1003], 99.90th=[ 1062], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 16, max= 136, per=24.70%, avg=71.63, stdev=22.03, samples=142 iops : min= 4, max= 34, avg=17.44, stdev= 5.56, samples=142 lat (msec) : 20=0.08%, 50=0.27%, 100=0.31%, 250=12.62%, 500=48.95% lat (msec) : 750=29.18%, 1000=8.36%, 2000=0.23% cpu : usr=0.15%, sys=0.89%, ctx=5272, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153901: Tue Sep 8 21:28:58 2026 read: IOPS=17, BW=70.7KiB/s (72.4kB/s)(5060KiB/71613msec) slat (usec): min=2236, max=33292, avg=9210.85, stdev=4117.61 clat (msec): min=13, max=577, avg=281.85, stdev=55.67 lat (msec): min=26, max=585, avg=291.07, stdev=56.22 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 199], 10.00th=[ 220], 20.00th=[ 239], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 296], | 70.00th=[ 313], 80.00th=[ 330], 90.00th=[ 347], 95.00th=[ 368], | 99.00th=[ 397], 99.50th=[ 414], 99.90th=[ 527], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 184, per=25.21%, avg=70.35, stdev=26.62, samples=142 iops : min= 1, max= 46, avg=17.13, stdev= 6.75, samples=142 write: IOPS=18, BW=72.3KiB/s (74.1kB/s)(5180KiB/71613msec); 0 zone resets slat (usec): min=32, max=8014, avg=298.61, stdev=589.31 clat (msec): min=211, max=1103, avg=598.18, stdev=151.07 lat (msec): min=212, max=1103, avg=598.49, stdev=151.09 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 359], 10.00th=[ 409], 20.00th=[ 464], | 30.00th=[ 510], 40.00th=[ 550], 50.00th=[ 592], 60.00th=[ 642], | 70.00th=[ 684], 80.00th=[ 726], 90.00th=[ 793], 95.00th=[ 860], | 99.00th=[ 969], 99.50th=[ 1036], 99.90th=[ 1070], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 24, max= 175, per=24.70%, avg=71.63, stdev=22.15, samples=142 iops : min= 6, max= 43, avg=17.44, stdev= 5.57, samples=142 lat (msec) : 20=0.08%, 50=0.12%, 100=0.27%, 250=13.24%, 500=49.49% lat (msec) : 750=28.95%, 1000=7.46%, 2000=0.39% cpu : usr=0.16%, sys=0.91%, ctx=5138, majf=0, minf=16 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=279KiB/s (286kB/s), 69.3KiB/s-70.7KiB/s (70.0kB/s-72.4kB/s), io=19.6MiB (20.5MB), run=71613-71803msec WRITE: bw=291KiB/s (298kB/s), 72.3KiB/s-73.3KiB/s (74.1kB/s-75.1kB/s), io=20.4MiB (21.4MB), run=71613-71803msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=153916: Tue Sep 8 21:29:04 2026 read: IOPS=3, BW=133MiB/s (140MB/s)(40.0MiB/300msec) slat (nsec): min=24861k, max=24861k, avg=24861458.00, stdev= 0.00 clat (nsec): min=260721k, max=260721k, avg=260721321.00, stdev= 0.00 lat (nsec): min=285611k, max=285611k, avg=285610511.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.01%, ctx=31, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=133MiB/s (140MB/s), 133MiB/s-133MiB/s (140MB/s-140MB/s), io=40.0MiB (41.9MB), run=300-300msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout